<template>
  <el-pagination :background="background" :current-page.sync="currentPage" :page-size.sync="pageSize" :layout="layout"
    :page-sizes="pageSizes" :total="totalSize" v-bind="$attrs" @size-change="handleSizeChange"
    @current-change="handleCurrentChange" />
</template>

<script>

export default {
  name: 'Pagination',
  props: {
    totalSize: {
      required: true,
      type: Number
    },
    page: {
      type: Number,
      default: 1
    },
    limit: {
      type: Number,
      default: 20
    },
    pageSizes: {
      type: Array,
      default() {
        return [10, 20, 30, 50]
      }
    },
    layout: {
      type: String,
      default: 'total, sizes, prev, pager, next, jumper'
    },
    background: {
      type: Boolean,
      default: true
    }
  },
  computed: {
    currentPage: {
      get() {
        return this.page
      },
      set(val) {
        this.$emit('update:page', val)
      }
    },
    pageSize: {
      get() {
        return this.limit
      },
      set(val) {
        this.$emit('update:limit', val)
      }
    }
  },
  methods: {
    handleSizeChange(val) {
      this.$emit('getList', { page: this.currentPage, limit: val })
    },
    handleCurrentChange(val) {
      this.$emit('getList', { page: val, limit: this.pageSize })
    }
  }
}
</script>

<style lang="scss" scoped>
.el-pagination {
  text-align: center;
  margin-top: 5px;
}
</style>
